Filling-machine.



L. A. BAKER.

FILLING MACHINE.- APPLICATION FILED AP R. I9, l9l6.

6 SHEETS-SHEET I.

Patented Jan. 22, 1918-.

L. A; BAKER.

Patented Jan. 22,1918.

6 SHEETSSHEE T 2.

L. A. BAKER.

FILLING MACHINE.

APPLICATION FILED APR. 19. I916.

Patented Jan. 22, 1918.

6 SHEETSSHEET 3.

L. A. BAKER. FILLING MACHINE.

APPLICATION FILED APR. 19. 1916.

Patented Jan. 22, 1918.

6 SHEETS-SHEET 4.

' a J &4 IX. 111

a 1/1 I 20 115 1/5 i g i 2/7 J10 J/Z 1 L. A. BAKER.

FILLING MACHINE.

APPLICATION FILED APR-N11916- Patented Jan. 22, 1918 s snsns suzsr 5.

L. A. BAKER. FILLING MACHINE. APPLICATION FILED APR--19, 191s.

- Patented Ja1i.22,'1918 6 SHEETSSHEET 6.

LEWIS A. BAKER, or ELGIN, ILLINOIS.

FILLING-MACHINE.

Specification of Letters Iatent. ?a1;ented J n. 22 1918;

Application filed April 19, 1916. Serial No. 92,087.

To all whom it may concern:

Be it known that I, LEWIS A. BAKER, a

citizen of the United States, and a resident and .I do hereby 1 and for of Elgin, in the fflOllIitY of Kane and State of Illinois, have invented certain new and useful Improvements in Filling-Machines; declare 'thatthe following isa full, clear, and exact description thereof, reference'being had to the accompanying drawings, and to the characters of reference which form a part of this This invention relates to improvements in filling machines for successively filling receptacles from a tank or reservoir as said receptacles are passedthrough the machine, discharging the filled receptacles from the machine, the receptacles being brought into communication Wlth the reservoir during a portion of the period in which they are passing through the machine,

so that predetermined charges of the material may be fed from the reservo r to the receptacles, which communicationis closed 0% after the receptacles have been filled and re mains closed until the receptacles are discharged'from the machine.

The invention herein shown has been de-" signed more. particularly for handling relativelyheavy material such as syrups, jellies,

preserves, paints, mince-meats and the like.

Among the objects of the invention are to Simplify and improve the feed mechanism which controls theflow of material from the receptacles,f and to -nn'prove and simplify commor'ionceiitraltank orreservoir to the the valve mechanisms therefor and the means for actuating the valve mechanisms. A further object of the invention is to rovide an improved feed mechanism'by which the material is fed from the common or central reservoir to the receptacles, so constructed and arranged as to admit of a wide range of adjustment and thereby adapt the machine to receptacles of widely varying capacities. A further object of the invention is to provide an improved means for actuating the valve mechanisms, 'so constructed and arranged as to be actuated to open the feedmechanism only by the presence of a continuous series of receptacles delivered to the machine, whereby if a receptacle be not present, the particular valve mechanismwhich wouldhave otherwise been actuated thereby remains inactive to prevent the discharge of material upon the receptacle carrying table.

Other objects of the invention are to improve 'and simplify the structural details of filling machines of the general character shown, and the. invention consists of the combination and arrangement of elements shown in the drawings and described in the specification and is pointed out in the appended claims.

-In the drawings p Figure l is a side elevation of a filling machine embodying my invention.

Fig. 2 is a plan view thereof.

Fig. 3 is a horizontal section on the line 3 s of Fig. 1.

Fig. 4 is a vertical section on the line H of Fig. 1.

Fig. 5is an enlarged detail section of one of the feed devices, showing the adjacent portion of thefeed reservoir and the valve mechanism associated therewith.

Fig. 6 is a fragmentary vertical section on the line 6-6 of Fig. 5. I i

Fig. 7 is another view of the parts shown inFig. 5, with the parts in difierent positions. I

Fig. 8 is a fragmentary horizontal section on the line 8-8 of Fig. 7.

Fig. 9 is an enlarged vertical section on the line 9-'9 of Fig. 3.

The frame of the machine embraces a plurality of legs or standards 15, 15, three as herein shown, which are connected by a cross brace 16. Said legs terminate in a like number of slotted upright members 17, which are connected at their upper ends by a threearmed connecting frame or spiderlS. 2

designates a vertical rotative shaft which is mounted in lower and upper bearings 21, 22,

'and disconnected from the power shaft through the medium of a clutch mechanism 27, the details of which are not herein shown, and which is actuated by a shifter'lever 28 that is pivoted at'29 to the machine frame.

33 designates a horizontal rotative table which is fixedly attached to the, vertical shaft 20 in any suitable manner, as by means of a hub 34, shown most-clearly in Fig. 4. Said table is located in the plane of a hori- Zontal fixed table 38 at the side of the machine at which the receptaclesare fed to and discharged from the machine. The fixed table 38 is provided with parallel ways or slots in which the upper laps of the receptacle feeding and take-off belts 39, 40, re-

. mounted thereon to rotate therewith.

spectively, are arranged, said'belts being trained about pulleys 41, 42, respectively, that are mounted on transverse horizontal shafts 43, 43', which are supported in bearings 44, 44 that depend from the horizontal platform 38,-and are geared together to rotate in opposite directions by intermeshing gear wheels 43 Said pulley shaft 43 is driven from the power shaft 25 through the medium of 'gears 45, 46, 57, and a shaft 48, one end of which latter shaft is connected to the shaft '43 through the medium of a setof intermeshing spur gears 50. 7

Supported on the vertical shaft 20 above therotative platform 33 is a feed or storage tank 55, it beingherein shown as disposed centrally of the axis of said shaft arid s herein shown, a central sleeve 57 is formed integral with or is attached to the bottom wall 58 ofthe reservoircentrally thereof, the

sleeveextending above the rim of the reser voir. The shaft 20 extends through the sleeve 57 and the sleeve has a bearing on the shaft at 59. The shaft'20 is screw-threaded from a point above the table 33 to a distance within'the sleeve, and is reduced above its screw-threaded portion, on which reduced portion the sleeve has bearing. Screwthreaded to the shaft, below the reservoir, is a nut 60 which carries an integral beveled gear 61. Said 'nutbears upwardly against the bottom of the reservoir; The construction described provides means whereby .the

' reservoir may be raised and'lowered, with I respect to the table 33-, thus enabling the machine to be adjusted to receive receptacles of varying heights 'to be filled. The means herein shown for rotating said nut to thus adjust the machine for receptaclesof different heights consists of a pinion 64 which meshes withthe gear 61, the shaft 65 of which pinion "is rotatively mounted in a bearing 66 that is carried by a bracket which depends from and is attached to the bottom of the reservoir. The outer end of the shaft 65 is fashioned to receive an adjusting implement whereby it may be turned. The parts may be locked in adjusted position in any. suitable manner, as, for instance, by means of a set screw 67 which is screw threaded through the bearing sleeve 66 and impinges against the adjusting shaft 65.

Arranged about the reservoir thus supported upon the upright shaft 20 are a pl'urality of upwardly opening pump barrels 7Q which cooperate withpistons 71, hereinafter terial.

to be described, to draw the material from the reservoir at properly timed intervals and to thereafter force the material into the ree' ceptacles supported on the rotative table 33 said barrel and the outflow of the material from the barrel to the receptacle therebelow. The parts associated with each barrel constitute in effect a single valve for controlling both the inflow and the outflow of the ma- The said barrels are herein shown as fastened to the exterior of the reservoir by flanges or arms 72 which are curved to fit the exterior curvature of the reservoir rim and may be bolted or otherwise fastened thereto- Each barrel is closed at its lower end by an end wall 73, and the end wall of each barrel is continued radially inwardly to constitute a flange 74 that fits'beneath the bottom wall or floor 58 of the reservoir. Said floor of the reservoir is provided with a plurality of outletopenings 75, arranged, one adjacent to eachpum barrel, and the flange 74- of the bottom wa l of the adjacent barrel is provided in line therewithwith a. port oropening 76. The bottom of each barrel is providedfwith two ports 77, 78, the former disposed centrally thereof and thelatter at one side of its center. 79 designates a sliding valve member which is formed with a fiat upper face that fits the flat lower face of the bottomof each barrel and its extension 74, and is provided with a port 80. The sliding valve member 79 is confined against the bottom of the barrel and its extension by a guide plate 82 whichis fixed in place by means of a bolt 83, or other suitable fastening device, in such man ner as to leave a free space for the valve member 79 to slideinwardly and outwardly between the outer end of the guide plate and the bottom of the barrel. The lower face ofthe valve member fits closely on the guide plate, the contactingsurfaces being particylindric as herein shown. The extended metallic bearings, between said valve mem ber and the upper and lower guide surfaces enable said parts to be fitted together to produce fluid tight joints and, at the same time,

to avoid the use of stuifing boxes or other special joints. Moreover, said construction permits the valve member to be directly reso that thencontents of the barrel are discharged into the receptacle A both by grav- .moved from its seat for purposes of clean- 'of the barrel.

massa e parison of Figs. 5, 6 and 7 that the valve which controls the passage of the material from the reservoir to the pump barrel and from the pump barrel to the receptacle below is a self-cleaning or self-clearing valve, in that the only space available to retain the material after each operation of the valve is that determined by the diameters of the ports 80 and 75 and the space immediately below the latter port. Furthermore, these spaces are in the direct line of flow of the material in the succeeding operation of the valve. In other words,there are no pockets which are out of the direct line of flow which would tend to clog the passage throughthe valve. Such material as may be contained in the passage 81 after the operation illustrated in Fig. 7 is forced inwardly by the valve and back into the reservoir when the valve is moved to the position shown in Fig. 5: and the only material which does not find its way to the receptacle below when the valve is shifted from the position shown in Fig. '5 to that shown in Fig. 7 is the small amount whichwill remain in the port 80 of the valve piece. Therefore the valve cannot become clogged or obstructed so as to thereby limit the flow of the'material from the reservoir to the pump barrel or from the pump barrel to the receptacle below; The piston-actuating mechanism is so arranged as to lift the piston when the parts are in the position shown in Fig. 7, as will be hereinafter described, so as to effect the displacement of the material from the reservoir to the feed pump barrels.

The valve members? 9 of the various pump devices are adapted to be actuated during rotation of the series of pumps to open and close the same by mechanism madeas fol- First, referring to the valve-opening mechanism, or that which moves the valves inwardly into position to afford communication between the pump barrels and the receptacles there-below, said mechanism is best shown in Figs. 2, 3 and 5. As therein shown, 90 designates a cam-shaped valve actuating plate which is arranged just above the plane of the valve members 79, and in such position that its cam-shaped edge is successively engaged by bearing rollers 91 on the valve members as the empty receptacles are fed into the machine to force It will be noted from comthem inwardly. The cam plate 90 is arranged a distance in advance of the point at which the receptacles enter-the machine so that said receptacles are'properly positioned beneath the feed pumps when the valves are thus moved inwardly to establish communication between the feed pump barrels and the receptacles; gage plates of familiar form being employed to properly'locate the receptacles. The said valves remain open throughout the greater portion-of the travel of the receptacles through the machine and are adapted to be closed or moved to the position shown in Fig. 7 by a normally fixed cam plate 93 which is located just in the rear of the mechanism which discharges the 'filled' receptacles from the machine. During the time the pumps are passing from the valve-actuating cam 93 to the valve-actuating cam plate .90, the filled receptacles are being discharged from the machine and the pump barrels are receiving fresh charges of material.

"In the event of failure to feed an empty receptacle to the machine, means are provided for moving-the valve-actuating cam plate90 out of the path of the bearing roller 91 of the associated pump, so that said valve will remain closed during the subsequent cycle of travel of said pump in the machine. Thereby material is prevented from escaping onto the rotating table. ,To this end said valve-actuating cam plate 90 is shown as pivoted between its ends at 94 to a bracket,

95 which is carried by the adjacent upright frame member 17, the outer end of the said plate constituting a tail piece 96 for connection to a controlling device hereinafter to be described. The means herein shown for throwing the valve-opening cam plate 90 into its operative position are made ,as-foL lows v 97 designates a horizontally arrangedcurved throw out arm that is pivoted at one end at 98, as indicated in dotted line in Fig. 3, and extends at its other end toward the direction of travel of the rotating series of the rod and a helical cushioning spring 104 interposed between said swiveled head and a collar 105 on the rod. 106 designates alink connected at its lower end to a swiveled head carried by one arm of the bell crank lever and at its upper end to the tail piece 96 of said cam plate 90.

107 designates a spring which is mounted p outof the path of the bearing rollers 91,

on tnehinge pintle of the cam, plate and nor ma'lly tends to hold thecam plate upwardly and ,.'also acts through the bell crank lever 100,.link 106 and r0d'99 to normally hold the curved arm 97 inwardly toward the path of'the receptacles. When a receptacle ens ters the machine, it'engages the swinging arm 97 before the valve of the feed pump associated with said receptacle is brought into position to be actuated by the .cam plate 90. Therefore the free end of the'arm is .-swung outwardly and operates through the "*systemlof rod, lever and link to swing the "valve-actuating plate 90 downwardly into :the path of the bearing rollers 91 of the v valve members 79. Therefore the engage men or the bearing roller with the" cam plate serves to' force the valve member inwardly-to the position shown in Figs. 5 and 6, and thus establish communication between the pump barrel 70 and the subjacent 1e actuated. In prder to adjust this -ceptacle'. In the event of a failure to feed oneor more "receptacles to the rotating table 33, thefvalve associated with the feed pump nothaving a, receptacle thereunder passes the valve-actuating plate 90 without being part of i..th e-m chine to -receptacles ofdifl'erent diam- J clampin throw-out cam 97 is shown as pivn; adjnstingbar 108 that is slotted andis attached to'the frame of themachine vbyic'lal'mping h lts 109. By loosening said gi boltsfandshifting the bar outar i yt yra'diallyoutwardly to accommo-'v p {of larger diameter. A cor: g -adjus'tmentiwill be made between adedend of'the rod 99 an d the bell ever nu; ,1 v v hje mechanism for actuating the pistons 70--jof;jthe*feed-pumps are so timed as to raise-each piston when the associated pump barrel; is 'in cpmmunication with the reser- -voir' 55' (position shown in Fig. 7), so as to draw a chargeofthe material from said Figs. 5 and 6. Said piston-actuating mechs anismis made as follows: ii 7 v @The pistons are provided within reservoir" into the pump' barrel, and to .de re s pistonto force thesaid charge, therefrom 11112011v subjacent j receptacle A'- when the parts are'in position" indicated in *extend'ng piston rods 110, to the-uppe'r'ends *"of which-"are'rigidlyf fixed cross heads 111. toi i'saidcross heads 'are downd' -guide bars 112 which' enf1-movenient-ofr thepistons relatively to the axes ofl-the-rpum'pbarrels: :Fia'eh of said 7 crosshead's'carries a laterally directed bearingfroller 115, which travels on'jdescending and ;'ascending cam' bars :116, 117, Lrespecpivot of fthe throw-out arm will wardly ble guides 113 formed on or? carriedby fthe' pumpbarrels. Thisconstr'uc-fi tionljinsures the maintenance vof parallel energies tively, whichare supported on thefmacn'ijne frame.' The rollers 115 associated with said pistonstravel along the under side of the descending cam bar 116 during the time the pumpsare passing through their cycle of movement from the position of the valveopen-ing cam plate 90 to that of the valveclosing cam plate 93; said cam bar 116 serving to depress the pistons and expel the material therefrom into the subjacent receptacles. The ascending cam bar 117 is so related at its ends to the ends of the descending cam bar that the said bearing rollers 115 pass freely from the under sideof the de scending cam bar to the upper side of the ends, and also pass freely from the upper side of the upper end of said ascending cam bar to the lower side of the upper end of the descending cam bar, said bars slightly overlapping at their meeting ends. The meeting ends of the ascending and descending cam bars are located closely adjacent to the valveactuating cam plates 90 and 93, or just sufiiciently in advance of said cam plates so that, at the opening side of the machine the valves are opened before the pistons descend, and

ascending cam bar 117' at their lowermost at the closing side of the machine the valves are moved to bring the'pump barrels into communication with the reservoir before the pistons begin to ascend. The cross heads 111 carry hook members 111..which engage over the upper side of the descending cam bar 116 said arms are provided"with slotted terminals 125 which receive clamping bolts 126, 126'vthat attachthe ends ofthe cam bars to said brackets;- 'The' cam bars'are. also attached at their ends to the swiveled blocks 123 by means'of bolts orstuds 127, whereby the ends ofsaid bars are maintained at fixed distances apart.

One of the features of my invention bars flexible so as to permit wide ranges of adjustment thereof to produce various lengths of. stroke of the pistons 70, dependsides, in making said piston-controlling cam most clearly shown in Fig. 6. The ends of 1n 'npomthe volume of charge to be fed y ii it said 7 H gate-made of a construction possessconsiderable flexibility",

so that the. up-

rec'eptacles therebelow. To'this end,

\ screw-threaded shafts 129 that are rotatably mounted in bearings 130 carried by the upper member 18 of the machine frame and are provided with hand wheels 131. When it is desired to adjust the cam bars, the clamping bolt or screw 121 is loosened so that the brackets vare free to slide upwardly and downwardly in the frame members 17. The clamping bolts 126 are also loosened to permit them to shift in the slotted terminals 125. Thereafter the screw-threaded shafts 129 are turned in the proper direction and to the required extent to vertically ad ust the cam barsflvhereupon the clamping bolts are again tightened to rigidly fix the bracke'ts to the frame. By reason of the fact that the ends of the'ca'm bars are .pivotally connected to the swiveled block 'and that they are loosely connectedto the arm terminals 125 when an adjustment is being made, the swiveled head is permitted to turn about the axis of-the bolt 121 and to permit the effective lengths of the cam bars to be increased or decreased, while maintaining the ends of said bars at the, same distanceapart in all adjustments. The flexibility of the cam bars permits them to bend to accommodate the raising of the,bar' at one end relatively to the other end thereof. While there may be a slight tendency for the bars to turn as the ends thereof at one side of the. machine are raised relatively to the ends of the other side of the machine, this will not be objectionable. 111 this connection, it will be also noted that the construction described provides means for adjusting the machine to fill receptacles of varying heights; and in thisuse of the adjusting means the cam bars are raised equally at both sides of the machine bv the simultaneous'adjusting of both screw shafts 129. In such latter adjustment the clamping bolts 126 need not be loosened.

An important feature of advantage of the use of a single sliding valve for each pump barrel is that this type of valve renders the valve mechanism self-cleaning and prevents clogging of the ports and passages thereof when operating with relatively heavy or lumpy material, such as thick paints, heavyjellies, mince meat or the like.

Such self-cleaning action of the valve also insures extreme accuracy in the delivery of a predetermined quantity of the material from the reservoir to the receptacle in each operation, so that a given adjustment of of the receptacle below, always insures the dellvery of a pre-determined quantity of mater al in each operation. Accuracy of .measurement-of the material is important inasmuch as the weight and measure requirements of the dltferent States are very rigid, and a machine which does not accurately measure the charges delivered at all times will be condemned. A further advantage of the construction described lies in the 1 case with which the valve member may be removed, it being freely withdrawable from place when away from the cams 90 and 93, and all parts of the valve mechanism are readily accessible for cleaning when the valve member is so removed.

The reservoir .and the pumps are adjusted vertically on the central shaft 20 by rotation' of the adjusting shaft 65 in the manner before described, andthereafter tighten ing the set screw 67 against said shaft. In order to provide for such vertical adjustment, it is necessary to also raise the valve: actuating cam members 90 and 93. This may'be efiectedby providing the brackets .the cam bars, with respect to the capacity I 95, of the cam members 90, 93, respec- .tively, with clamping studs or screws 135,

is vertically adjusted, and the parts are normally lockedtogether by a thumb screw 136. The receptacles are fed into and discharged from the machine by means of rotative feed disks 140 which are mounted on the upper ends of shafts 1 11 at the entering anddischarge sides of the machine. Said shafts are 'rotatively mounted in vertical bearings 14 2 carried by the machine frame.

They are provided at their lower ends with beveled gear wheels 14.4 that mesh with beveled pinions 145 on'the countershaft 18, whereby said disks are'driven in opposite directions. The said disks, are provided with irregular peripheries constituting recesses 15.0 which cotiperate with the curved guidin surfaces 151, 152 of a fixed guide plate 53 located between the disks to direct the receptacles to and from the machine. The feed disk receives the recep tacles from the feed belt 89 and directs them over-the platform 38 to the table 33, and the discharge disk receives the-receptacles from the table and directs them to the take off belt 40. v

In order to adjust the machines to receptacles ofdifl'erent diameters, the said feed disks are preferably of multiple construction, being made of two or more superposed shafts and disks. The guide plate may likewise be made of. a number of superposed -in their curved parts so as to cotip'erate with different adjustments of the disks.

It will.v be observed that by making the .cam bars 116, 117 of a construction to give a wide range of vertical adjustment to adjacent endsthereof relatively to the other ends, it becomes possible to widely vary the stroke v of the pistons and to feed widely varying charges ofmaterialtothe receptacles below. For instance, if it be, desired to fill a receptacle of much greater diameter than illustrated in the. drawings and of the same height, and onewhich therefore would receive a greater quantity of material, the

higher ends of the cam bars are raised while the lower ends thereof remain at the same level of adjustment as before. Likewise the machine may be again adjusted for areceptacle of the same or less'dimensions but of greater height. In making adjustment for the latte-r'receptacles, both the higher and lower ends of thecana bars are simultaneously raised. It is also obvious. that the same variety of adjustments maybe made with the taller: receptacles. as they increase in 'diiametefand dimensions by raising or adjusting the higher ends of the, cam bars. relatively to the lower ends thereof, It will.

...thus be apparent that the: machine. is adapted to accuratel tacles, the accuracy of the charge being as great in the smaller receptacles as. in the. larger receptacles. Itfiis also apparent that the machine is capable of operating on a wide variety 0t materials, running from a...

paints,

them on their cylindric faces with grooves.

172 which communicate-with the hollow pis-* tons by one. or more transverse openings 173. When. operating on food stufi's, the lubricant may consist of water'- or other neutral liquid When operating on paints or varnishes, the

lubricating medium may bevturpenthie. The openings 173 are made of a size to permit the luhricating'liquid to-jescape but slowly y fill a great range of recep-' into. the recesses or grooves, through the 'medium of which it is distributed to the contacting pistons-and cylindric bearing surfaces.

It will be understood that the structural details of the machine are capable of some tothe details shown except as the same are hereinafter made the subject of specific claims and as imposed by the prior art. members or laminae of different dimensions I claim as my invention 1. In a filling machine, the combination with a reservoir; :1. series of pump barrels communicable therewith; pistons within said barrels, and means to reciprocate them,

of a single endwise sliding ported valve member associated with each pump barrel and 'slidable on and having continuous metal to metal. contact with upper and lower guide faces, to control the withdrawal of material from the reservoir to the pump barrel and :reciprocate them, said reservoir being provided with a series: of ports adjacent to said puinpbarrels and the pump barrels being each provided with two bottom ports, with the two ports of each barrel arranged radially inline with an adjacent reservoir port, of a single sliding valve for each barrel provided with a. port adapted to. register with one of the ports of said barrel and with a partto covert-he; other port of said barrel. 3. In a filling machine, the combination with a reservoir having aseries of ports; a series of pump barrels each having two ports adjacent to each reservoir port, and pistons within said barrels, with means to reciprocate them, of a single ported sliding valve beneath each pump barrel and having sliding contact with the bottoms of the barrel. and reservoir to controlthewithdrawal of? material from the. reservoir to the pump barrel, and the passage of material from the barrel to a receptacle therebelow, and means to successively actuate: said valves.

4.-. The combination Witha reservoir'prd vided at its bottom with. an: outlet port, a

pump barrel at the" side. thereof provided;

with two bottomports, one of which is adapted to be connected by: a passage with said reservoir anda. piston in said barrel,

with means to actuate the same, of arvalve'. member sll'dable 111 said passage toward and from the reservoir port and having extended metalto: metal contact, at its upper and lower sides with the upper and lower walls of. said passage to provide liquid tight joints, and provided with a through port adapted to register with one of said bot-tom ports, with 'means to actuate said valve member. I

5. In a filling machine the combination witha reservoir provided at its bottom with an outlet port, a pump barrel at-the side thereof provided with two bottom ports, arranged in radial alinement with the reservoir port, and a guide plate applied to the bottom of the reservoir and extending outwardly' beneath the bottom of said barrel to provide a passage through which the reservoir port communicates'with one of said bottom ports, and itself provided with a port in register with the other of said botom ports, of a valvepiece slid'able in said passage and having metal to metal contact throughout its length with said plate and the bottom of the reservoir and barrel and provided with a port adapted to register with said registering ports. 6. The combination with a reservoir provided at. its bottom with an outlet port; a

pump barrel provided at its bottom with ports, there being formed beneath said bar- 'rel and adjacent portion of the reservoir a passage through which the reservoir portv communicates with one of the pump barrel ports, and a piston in said barrel, with means to actuate it, of a sliding valve member'in said passage and having extended contact at its upperand lower faces with the upper and lower walls of saidpassage to provide fluid tight joints, and provided with a port adapted to register with the other of said pump barrel ports and adapted by its movement to control the flow of material from the reservoir to the pump barrel, said passage being freely open at its end to permit the valve member to be removed.

7. The combination with a reservoir provided withan outlet port, a. pump barrel provided with two bottom ports, one of which is adapted to be connected by a passage with said reservoir port and a piston in said barrel, with means to actuate the same, of a valve member slidable in said passage toward and fromthe reservoir port.

and provided with a through port adapted to register with another of said barrel botactuating device.

tom ports and, havinga part adapted to close the first mentioned barrel bottom port, said valve member extending beyond the pump barrel and provided with a Contact member adapted for engagement with an 8. In a filling machine, the combination with a frame; a rotative reservoir; a pump barrel carried by and communicable with the reservoir; a piston in said barrel, and a controlling valve device for said barrel, of

rising and descending cam bars supported on the machine frame for positively reciprocating the piston in both'directions during rotation of the reservoir, and means to adjust the ends of the cam bars relatively to each other to vary the stroke of the pistons.

9. In a filling machine, the combination with a frame; a rotative reservoir; a series of pump barrels surrounding and communicable with the reservoir; pistons in said barrels, and controlling valves for said barrels,

of means carried by the machine frame for positively raising and lowering said pistons during rotation ofthe series of barrels, and

means acting on the raising and lowering means for varying the strokes of said pis- "tons.

10. In a filling machine, the combination ,with a frame a rotative reservoir; :1 series of pump barrels surrounding and communicable with the reservoir; pistons insaid barrels, and controlling valves for said barrels,

of flexible rising and descending cams concams, and .means at both the upper and lower ends of said cams to raise and lower the same constructed to raise and lower the upper ends of said cams relatively to the lower ends thereof. p

12. In a filling machine, the combination 'with a frame; a rotative reservoir; a series of pump barrels surrounding and com-' municable with the reservoir; pistons in said barrels, and controlling valves for said barrels, of rising .and descending cam bars with the upper and lower ends thereof meet.-

ing in respective overlapped, spaced relation; brackets vertically adjustable in the frame'to which the ends of said cam bars 'are'connected, and means for raising and lowering said brackets.'

13. In a filllng machlne, the combination with a frame; a rotative reservoir; a serles of pump barrels surrounding and communicable .with the reservoir; controlling valves for said barrels, with means to actuate the same, and'pistons in said barrels, of flexible rising and descending cam bars; brackets having means to vertically adjust to connect the ends of said cam bars to said brackets.

' the same on the frame, and swiveling means with a frame; a rotative'reservoir; aseries of pump barrels surrounding and communicable vWith the reservoir; controlling valves for said barrel s,,wit h means to actuiston's in =sa1dbarrels, of flexible rising and descending cam-bars ate the same, and

brackets having means to{yertically, adjust the same'onjth'e frame; heads swiveled to said brackets and provided with oppositely extending, vertically separated arms,- and means to connect the ends. of said cam'jbars to said-arms;

municable with the, reservoir; controlling valves fOI'Lsaid barrels, with means to actuthe same to the frame; heads "swiveled'to ate the same, and pistons in said barrels, of

flexible rising-"and descending cam bars; brackets having means to vertically adjust said brackets and provided with oppositely :andto maintain the jends of the cam bars extending, vertically separated armsprovided with vertically elongated 'slots'; -clampin'g means "i for the cam bars extending through said'slots, and means to pivotally connect the terminalsof said 'cam bars to spaced aparttjg' .1 iv V 16. Dhe combination with pumpbarrels said heads and: to thereby maintain them I and pistons, "of-flexible rising'and descendin'gcam bars to actuatethe pistons arranged withtheirends overlapping .in different planes,jbrackets mounted in the frame for. vertical ,-:'adjustment, and ,means to swivel inglyl connect said'c am bars to said brackets spaced a fixed distance 'apa'rtj.

1 17. Thecombination with pump barrels and pistons, of flexiblerising and descendfling cam bars to actuate-the. pistons arranged with their ends overlapping indifferent planes, brackets'mountedfin the frame for vertieal adjustment; heads s'wiveled to said brackets provided with oppositely extending vertically separated arms having vertically elongated slots;- clamping bolts extending through said bars and" slots and pivot studs for connecting theterrninals of said bars to the heads: between said armsf-f' and pistons, of flexible rising and descending cam bars to actuate the pistons'farranged with their'ends overlapping in difspaced a fixed distance apart, and means for raising and lowerlng said cam-bar-supporte ing brackets in the frame, constructed to permit the two adjacent ends of said bars to v. Y. Y

be raised and 1J1owered relatively to the other endsi'thereofl v of said bars. 118. The combination with pump ban- 1 I and pistons, of flexible risingland descendcam bars t o actuate the plstons ar 111g ran w th th en overlappmg M- ferenti; planes,. brac kets mounted in the frame, for; vertical' adjustment, and means toswivelingly connect said 'cam bars to said shafts rotatively' mo1 1nted in the frame and j a I engaging said members. I

15. In a filling-machine,v the'combination with a frame; a rotative reservoir; aseries of pump barrels surrounding'and com-' 20. A filling machine comprising a rotative ,reservoir; aseries of pump barrels;

pistons 11n said barrels valves to control the passage of material from the reservolr to the pump barrels and from the pump barrels on the'machine frame for reciprocating the pistons in the cylinders,- and supporting means for said cam bars constructedto, per

mit the higher ends thereof to be vertically adjusted relatively to their lower ends, com'- blf18d with means for raising both ends of said cams to a like extent.

21. Ina filling machine, the combination with a frame, a rotative series of pump bar-- rels, controlling valves for the barrels, with means to actuate them, and. pistons in said barrels, flexible, spaced fcam bars "to controlsaid pistons and members for vertically ad- 'justable and-swiveling connection with the frame to which the ends of the cam bars are loosely connected and by which they are. fixedly spaced. Y a 22. ha filling machine, the combination with a frame, a rotative series of pump barrels, controlling valves for the barrels, with so I means to actuate them, and pistons in said barrels, of flexible, spaced cam bars to control saidpistons-,'brackets vertically adjustable on the frame, Z-shaped members pivotally connected to 'saidbrackets' and pro- .vided with means to pivot the endsrof the cam bars thereto and to space the ends of the cam bars, there being provided slotted connections between said members and the cam bar's inwardly beyond the pivotedends 23; In a filling machine, the combination 1 with a, rotatable reservoir; a rotative table there-below, a series of pump barrels rotating with. the reservoir, and valve devices therefor, of a valve-actuating device in advance of the receptacle-receiving side of the machine comprising a pivoted cam plate.

adapted to be swung intothe path of the .valves to actuate the same, with means to normally hold; it out of'fthe path of the valves and means operated through the presence of a receptacle inthe machine to swing said plate into'its valve-operating position. 24. In a filling machine, the combination with a frame; a series of rotative pump barrels and a reservoir mounted in the frame; a rotatable table beneath the barrels, and

valves to control the flow of material from the reservoir to the barrels and from the barrels to the receptacles below, of a swingthe reservoir to the barrels and from the barrels to the receptacles below, of a swingin g valve-actuatingplate, with means whereby it is normally held out of the path of said valves; a contact bar adapted to be engaged by the receptacles, and operative connections between said contact barand said swinging plate comprising a bell-crank lever; a link connecting one end of the swinging contact arm with one arm of said bell-crank lever, and a link connecting the other arm of the bell-crank lever with said swinging plate.

26. In a filling machine, the combination with a frame; a series of rotative pump barrels and a reservoir mounted in the frame; a rotatable table beneath the barrels, and valves to control the flow of material from the reservoir to the barrels and from the barrels to the receptacles below, of a swin ing valve-actuating plate, with means to normally hold it out of the path of said valves;

a contact bar adapted to be engaged by the receptacles; a bell-crank lever; a link connecting one end of the contact arm with one arm of said bell-crank lever; a link connecting the other arm of the bell-crank lever with said swinging plate; means whereby said plate may be raised and lowered with respect to the frame, and means whereby. said latter link may be raised and lowered with respect to the bell-crank lever and may be locked thereto. a

27. A filling machine comprising a frame;

a rotative reservoir; a series of pump barrels having'valved communication with the reservoir; pistons in said cylinders provided with upwardly extending piston rods, rising and descending cam bars supported on said frame; bearing rollers carried by the upper ends of said piston rods to engage the upper and lower sides, respectively, of the rising and lowering cam bars, and hooks carried hold it outv of the path of said bar adapted ,to be engaged also by said piston rods to engage over the descending cam bar.

28. In a filling machine, in combination, a reservoir; a pump barrel having valved communication therewith, and a hollow piston in the barrel, with means to reciprocate it, said piston being provided on its exterior cylindric face with an annular recess or groove and being provided with one or more openings connecting said groove with the interior of the hollow piston.

29. In a filling machine, the combination with a seriesof pump barrels, pistons therein and valves for said pump barrels, of spaced flexible rising and descending cam bars to actuate said pistons carried by the machine frame, and means to raise the upper ends of said cam bars relatively to the lower ends-thereof to vary the lengths of stroke of the pistons.

30. A filling machinecomprising a frame, charge measuring pump barrels carried thereby, pistons in the barrels and controlling valves for the barrels, of flexible rising and descending cams one at one side of the machine and the other at the other side thereof and vertically spaced with their ends arranged in overlapping relation, and means to connect the overlapping ends of the cam bars, constructed to permit the upper ends of the bars to be raised and lowered relatively to the lower ends while maintaining the bars spaced and a mean to so raise and lower said cam bars.

31. A filling machine comprising a frame, charge measuring pump barrels carried thereby, pistons in the barrels and controlling valves for the barrels, of'flexible rising and descending .cams one at one side of the machine and the other at the other side thereof and vertically spaced with their ends arranged in overlapping relation, and means to connect the overlappin ends of the cam bars, constructed to permit the upper ends 7 March, A. D. 1916.

LEWIS A. BAKER. Witnesses:

WV. L. HALL, M. G. ADY. 

